The prevalence and characteristics of external cervical resorption based on cone-beam computed tomographic imaging: a cross-sectional study
ObjectivesThis study investigated the prevalence and characteristics of external cervical resorption (ECR) regarding sex, age, tooth, stages of progression, and portal of entry, using cone-beam computed tomography (CBCT) scans.Materials and MethodsCBCT scans of 1,313 patients from a Brazilian subpop...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Korean Academy of Conservative Dentistry
2022-11-01
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| Series: | Restorative Dentistry & Endodontics |
| Subjects: | |
| Online Access: | http://www.rde.ac/upload/pdf/rde-47-e39.pdf |
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| Summary: | ObjectivesThis study investigated the prevalence and characteristics of external cervical resorption (ECR) regarding sex, age, tooth, stages of progression, and portal of entry, using cone-beam computed tomography (CBCT) scans.Materials and MethodsCBCT scans of 1,313 patients from a Brazilian subpopulation comprising 883 female and 430 male patients (mean age, 55.2 years), acquired using a PreXion 3D CBCT unit, were evaluated. All permanent teeth included in the scans were evaluated for the presence of ECR according to the 3-dimensional classification and the portal of entry. The association between the presence of ECR and the factors studied was assessed using the χ2 test. Intra-observer agreement was analyzed with the kappa test (α = 0.05).ResultsIn total, 6,240 teeth were analyzed, of which 84 (1.35%) were affected by ECR. A significant association was found between the presence of ECR and sex, with a higher prevalence in male patients (p = 0.002). The most frequently affected teeth were the mandibular and maxillary central incisors. The most common height was the mid-third of the root. For the portal of entry, 44% of cases were on the proximal surfaces, 40.5% on the lingual/palatal surface and 15.5% on the buccal surface. Intra-observer agreement was excellent.ConclusionsThe prevalence of ECR was 1.35%, with a higher prevalence in male patients and a wide age distribution. The mandibular and maxillary central incisors were the most commonly affected teeth, and cases of ECR most frequently showed a height into the mid-third of the root and proximal entry. |
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| ISSN: | 2234-7658 2234-7666 |